Improvement in the methods of making blanks for plow attachments



0. A. ANTHONY. Improvement in the Method of Making Blanks for Plow Attachments. oily] 130 403, Patented Aug. 13, 1872.

mtmm:

UNITED STATES PATENT OFFICE.

ORREN A. ANTHONY, OF MAYFIELD, NEW YORK.

IMPROVEMENT IN THE METHODS OF MAKING BLANKS EOR PLOW ATTACHMENTS.

Specification forming part of Letters Patent No. 130,403, dated August 13, 1872.

Specification describing a new and Improved Method of forming a Blank for a Plow Attachment, invented by ORREN A. ANTHONY, of Mayfield, in the county of Fulton and State of New York.

My invention consists in a method of making a blank for an attachment for plows of a single plate of steel, as hereinafter fully described.

Figure 1 is a side elevation of my improved blank for a plow attachment. Fig. 2 is a plan of the bottom. Fig. 3 is a rear elevation. Fig. 4 is a longitudinal section of the point of the blank, and Fig. 5 is a diagram of the piece of sheet-steel from which the blank for the attachment is made.

Similar letters of reference indicate corresponding parts.

I take a piece or plate of sheet-steel of the form represented in the diagram, Fig. 5, and of suitable thickness and slit it on the line A, as shown; then bend the margin B downward on the dotted line 0 perpendicular to the plane of the plate. I also bend the margin E similarly on the line D, but considerably more than to the perpendicular of the plane of the plate or the parts H I, and then I bend the part F downward on the line G, so that the edges of E and B will meet, as shown, at K, and form the bottom of the point, while I forms the land-side and F the top of the point,

F the share, and L the colter. After the bending on the line G, I hammer down the outer edge of the bend, so as to flatten it somewhat, as indicated at M, to raise that edge of the point F nearly as high as at the line G; also to bring the edges of E and B together to weld them a short distance back from the front end of the point, as shown at K. At the rear of the part hammered the share is twisted, as indicated by the shading N, Figs. 1 and 3, to bring the lower edge down to the level of the bottom of the attachment. The part H is thus brought into a vertical position, and the edge out on the line A becomes the cutting-edge of the colter. When a colter is not required the parts H B will be cut off from the rest on the line 0.

The attachment made from my improved blank is fitted onto the worn-out point of a plow, and secured by rivets or bolts through the share and colter, as indicated by the holes therein. By this mode of forming the blank I am enabled to make the attachment of steel readily and cheaply, and I have a more durable metal for wear when the attachment is formed by casting the steel.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The method of making a blank for a plow attachment from a steel plate by slitting it on the line A, bending margin B down on the line C perpendicular to plate, margin E on line D more than perpendicular to plate, and the part F downward on the line G, so that edges E and B will meet at K, all as and for the purpose set forth.

' OBBEN A. ANTHONY.

Witnesses:

MELVIN GREEN, P. M. SMITH. 

